Earphone



FIG. 1 is a perspective view of an earphone showing our design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

The broken lines in the figures show portions of the earphone that form no part of the claimed design. 

CLAIM The ornamental design for an earphone, as shown and described. 